[DeTomaso] cool...well maybe

[thomas]

I have been using propylene glycol for years, both in the cars and the solar collector setup.

I use about 1/3 glycol, which works well with the temps we see.


> 30 mar 2015 kl. 18:39 skrev Larry - Ohio Time <Larry at ohiotimecorp.com>:
> 
>   Because of its sweet flavor and aroma, thousands of wild animals, pets
>   and children are poisoned by drinking automotive antifreeze/coolant
>   every year. Its particularly nasty ingredient is ethylene glycol, which
>   affects the central nervous system, heart and kidneys to the point that
>   it can ultimately prove lethal. Now, however, scientists from
>   Colorado-based ACTA Technology, Inc. have replaced the ethylene glycol
>   with another compound that's not only safe, but that also improves the
>   performance of the antifreeze.
> 
>   Led by ACTA founder Prof. Edward V. Clancy, the researchers looked to
>   propylene glycol as the substitute. It's safe to consume, and is
>   already used to absorb moisture and stabilize mixtures in foods such as
>   frostings and artificial sweeteners. It's also utilized in coolant for
>   industrial machinery, in settings where poisonous substances are an
>   absolute no-no (such as food-processing facilities).
> 
>   Because of its thick consistency, however, propylene glycol in its pure
>   form wouldn't work well in cars. It wouldn't be as efficient a coolant
>   as the runnier ethylene glycol, so much more of it would be needed to
>   have the same effect.
> 
>   In order to get around that problem, the scientists thinned it with
>   water and they added pyrogenic metal oxide nanoparticles. Not only
>   should the resulting liquid still be safe to consume, but it's also 60
>   percent more efficient than traditional antifreeze at transferring
>   heat. That boost in performance is mainly due to the increased surface
>   area offered by the particles.
> 
>   "Because ACTA's patented propylene glycol/water mixture with our
>   additive increases the heat transfer of the flow systems, vehicle
>   manufacturers could make these systems smaller," said Clancy. "A
>   smaller radiator would result in a lighter car, thereby increasing fuel
>   economy and cutting emissions."
> 
>   ACTA plans on first marketing the product to the food processing
>   industry, as vehicle manufacturers would have to redesign their cooling
>   systems in order to accommodate it. It's expected to be available
>   within one year.
> 
>   Source: [1]American Chemical Society
> 
> 
>   Larry (just the messenger) - Cleveland
> 
> References
> 
>   1. https://www.acs.org/content/acs/en/pressroom/newsreleases/2015/march/food-additive-could-serve-as-a-safer-more-environmentally-friendly-antifreeze.html
> 
> 
> !DSPAM:55197e9b183071374015390!
> _______________________________________________
> 
> Detomaso Forum Managed by POCA
> Posted emails must not exceed 1.5 Megabytes
> DeTomaso mailing list
> DeTomaso at poca.com
> http://poca.com/mailman/listinfo/detomaso_poca.com
> 
> To manage your subscription (change email address, unsubscribe, etc.) use the links above.
> 
> 
> !DSPAM:55197e9b183071374015390!